Improvement in cooling soap, and forming the same into ears



dadini tant @met @imita sILAs R. DIVINE, or NEW-YORK, N. Y;

Letters Patent No. 93,972, dated August 24, 1869; anteclated August 7,1869.

The Schedule referred to in these Letters Patent and making part of thesame.

T/o all whom it 'may concern.-

Be it knownthat SILAs It. DIVINE, of the city,

county, and State of New York, have invented a new and improved Mode ofCooling and Barring Soap; and I do hereby declare that the following isa full and exact description thereof, reference being had to theaccompanying drawings,` and to the letters of reference marked thereon.y

The natureof my invention 4consists in introducing soap, while in thehot and f'luid state, into metallic tubes, of the size and shaperequired for bars of soap, allowing it to congeal, and subsequentlyforcing out the soap in the form of long bars, to be cut in lengths thatmaybe required.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

I construct my pipes of metal, iron,.brass, copper, or other metal,-of arectangular or other form, to serve as a mould for the soap.

As a material for pipes, I prefer copper, as it possesses great.conductive power for heat, and may be madecomparatively thin and light,and yet have sufficient strength to withstand the pressure necessary inexpelling the cold bar of soap.

For cooling the soap rapidly, I immerse the pipes in cold water, whichendis secured by employing a tank of suitable dimensions, `and allowingthe tubes to protrude through opposite sides or ends of the tank, bywater-tight joints, and filling the tank with water, sufficient tosulround the tubes on every side.

I prefer to lay the pipes horizontally in thev tank, for convenience ofworking. p

The pipes may be filled with hot soap by exhausting the air at one end,and allowing the soap to flow in at the other, by letting it run in froma reservoir, (one end of the tube being stopped,) by pumping, or otherconvenient means.

After the soap congeals, the bar may be expelled from the tube by apiston or plunger, fitting the bore of the tube, or by pneumaticorhydrostatic pressure.

But thel plan which I practically employ, is to` e'xpel the cold barwith hot soap, forced in by a pump at one end, the congealed soapleaving at the other.

I do not entirely expel the hard soap in the tube, but leave a shortlength within the tube, to serve as a plug, to prevent the fluid soapfrom running out.

I find that it is not practicable to use tubes of very great length, onaccount of the great pressure required in forcing cold soap from a tube,and the consequent increase of power required, and the danger ofbursting the pipe. Y

I employ pipes twelve feet long, and-whentbey are rectangular, of thesize two and a quarter by two and a half inches, the initial'pressurerequired to move the cold soap amounts to two hundred or two hundred andtwenty pounds per square inch.

After the cohesion of the congealed soap .to the sides of the tube isbroken, the pressure required to keep the bar moving will not exceedforty pounds tothe square inch.

Now, to operate a number of' tubes in succession, with one pump, andwithout interruption, I employ the following means, and here referencewill be had to the accompanying drawings:

A A A are pipes for moulding the soap, said pipes being laid in thetank. A

B B B are small pipes, with union-coupling.

C C C are cocks, for letting in and shutting oi hot soap. These cocks Idenominate switch-cocks.

D is a distributing-pipe, connecting with the whole series ofswitch-pipes. 1

E is a pipe, connecting the distributing-pipe and pump. l

F is the tank, divided into two compartments, the longer one containingthe soap-tubes, surrounded `wlth cold water, and the shorter onecontaining the switchpipes, cocks, and distributing-pipes.

This latter compartment contains bot water, to keep the soap fromcongealing in the switch-pipes and distributing-pipe.

Suppose the whole series of pipes to be filled `with f cold soap, andall the cocks closed; now, when the first cock is opened, and the pumpset in action, forcing in hot soap, the cold bar of soap will beexpelled from the other end of' that tube. When it is nearly expelled,(leaving enough for aplug to retain the fiuid soap,) the second cock isopened, and the first shut o, when another bar will be expelled from thesecond tube, and so on tlnough the series, all the cocks being operatedin succession.

Cold water is' k'ept constantly running in the tank containing thesoap-tubes, the surplus water running out by an overflow.

The tubes for moulding the soap can be made of other than rectangularforms, if desired.

The bars, as they issue from the tubes, canA be received upon a table,and cut into such lengths as may be required. p p

The advantagesof this mode of cooling aud bar'- ring soap are a savingof time and labor.

The soap is harder, when made by this method.

The bars, in drying, preserve their form better than those made by thepresent' methods, as they shrink equally, and do not warp. I

What I claim as my invention, and desire to secure by Letters Patent,is- I 1. Cooling soap, in the form of bars, in tubes vof metal.

2. Cooling the soap by means of water surrounding the tubes.

3. Forcing the soapj'rom the tubes by pneumatic, hydrostatic, orpiston-pressure, or by displacement with hot soap, introduced by pump orotherwise.

' v4.V Switching from one tube to another, substantially as described. v

SILAS R. DIVINE.

Witnesses:

WM. H. MORGAN, lHENRY M. BREWSTER.

